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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 419 · 40 questions
TalentJR

How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.

NameDateTime takenScore ___ / 40
  1. 1.301 − 277 =
  2. 2.524 − 494 =
  3. 3.307 − 278 =
  4. 4.314 − 294 =
  5. 5.68 − 35 =
  6. 6.501 − 498 =
  7. 7.306 − 295 =
  8. 8.129 − 90 =
  9. 9.77 − 34 =
  10. 10.63 − 46 =
  11. 11.330 − 277 =
  12. 12.204 − 181 =
  13. 13.1025 − 990 =
  14. 14.1009 − 992 =
  15. 15.51 − 32 =
  16. 16.322 − 281 =
  17. 17.112 − 87 =
  18. 18.104 − 90 =
  19. 19.78 − 34 =
  20. 20.116 − 78 =
  21. 21.108 − 76 =
  22. 22.506 − 484 =
  23. 23.226 − 190 =
  24. 24.229 − 178 =
  25. 25.309 − 279 =
  26. 26.110 − 79 =
  27. 27.208 − 197 =
  28. 28.130 − 98 =
  29. 29.106 − 62 =
  30. 30.75 − 32 =
  31. 31.107 − 97 =
  32. 32.1007 − 994 =
  33. 33.106 − 78 =
  34. 34.224 − 189 =
  35. 35.209 − 177 =
  36. 36.330 − 290 =
  37. 37.58 − 32 =
  38. 38.207 − 188 =
  39. 39.1002 − 989 =
  40. 40.101 − 79 =

Answer key

  1. 24
  2. 30
  3. 29
  4. 20
  5. 33
  6. 3
  7. 11
  8. 39
  9. 43
  10. 17
  11. 53
  12. 23
  13. 35
  14. 17
  15. 19
  16. 41
  17. 25
  18. 14
  19. 44
  20. 38
  21. 32
  22. 22
  23. 36
  24. 51
  25. 30
  26. 31
  27. 11
  28. 32
  29. 44
  30. 43
  31. 10
  32. 13
  33. 28
  34. 35
  35. 32
  36. 40
  37. 26
  38. 19
  39. 13
  40. 22

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